How to get the Main Source of a compiled VB exe?

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Hey guys who can tell me how to get the main source of a compiled VB exe so that it can be editable from the source?

Edit:
I found a source that I changed some strings and variables and in one part i get these
Select Case KPpqXOIb.GOY0tp8YEY(F4o9642df("tfkafo"))
Sub or Variable Not Defined
How do i fix it?

Posted 16-Oct-11 15:32pm

Member 8323964

Updated 16-Oct-11 16:13pm

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Sergey Alexandrovich Kryukov 16-Oct-11 21:34pm

What is "main source"?
--SA

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Sergey Alexandrovich Kryukov · Accepted Answer · 2011-10-16T15:44:00

Ever heard about information entropy, http://en.wikipedia.org/wiki/Information_entropy[^]?

When you turn source code into executable code, entropy grows and part of information is lost. If you have the source you don't have this problem and would not ask this question. So, you don't have the source but deal with the executable code of application only, the source is lost for you, as well as big part of information. (An executable file does not contain source code, in case you were not aware of it.)

Now, remember that .NET executable code is a bytecode; and .NET includes Reflection. An assembly can be reverse-engineered (http://en.wikipedia.org/wiki/Reverse_engineering[^]) pretty easily to get some source code equivalent to the original one. (No, Reflection is not enough to do that.) Nevertheless, this is different source code, not the same as original. Generally, it can be harder to read and understand. Also, the assembly could be obfuscated before deployment, see http://en.wikipedia.org/wiki/Obfuscation[^].

To reverse-engineer some assembly, you can use Reflector. See http://en.wikipedia.org/wiki/.NET_Reflector[^], http://www.reflector.net/[^]. Unfortunately, this software is proprietary, not Open Source.

[EDIT]

Alternatively, look at ILSpy: http://wiki.sharpdevelop.net/ilspy.ashx[^].

This product is Open Source.

[END EDIT]

—SA